put in your departure and destination on Google flights, you can see price history. Put whatever interested you on alert.
Or, 註冊航空公司的飛行常客計畫。 Enable receive marketing material thru email。 您將收到各種 Sales 通知。 過去幾天有英國航空、伊比利亞航空（西班牙的航空）、阿拉斯加航空和美國航空的 Sales。 I posted Alaska Airlines 3 days sale West Coast to Florida here. 非常便宜 Got the email notice yesterday. Sales end tomorrow.
https://bbs.wenxuecity.com/travel/716686.html
